Nickel-Doped Gallium-Containing Glasses Luminescent
in the Near-Infrared Spectral Range

N. V. Golubev^a, V. I. Savinkov^a, E. S. Ignat’eva^a, S. V. Lotarev^a, P. D. Sarkisov^a, V. N. Sigaev^a, *,
L. I. Bulatov^b, V. M. Mashinskii^b, V. G. Plotnichenko^b, and E. M. Dianov^b

^aCenter of Optical Glass, Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, Moscow, 125047 Russia

*e-mail: vlad.sigaev@gmail.com

^bFiber Optics Research Center, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119333, Russia

Received March 26, 2010

Abstract—The heat treatment of glasses synthesized in the M₂O–Ga₂O₃–GeO₂–SiO₂ (M = Li, Na, K) system
results in bulk precipitation of Ga₂O₃ and LiGa₅O₈ nanocrystals and, consequently, in luminescence within the
bands with maxima at wavelengths of 1500 and 1300 nm, respectively, with the half-width exceeding 300 nm.
In their spectral luminescence properties, the gallium germanium silicate glasses synthesized are similar to the
gallium silicate glasses. However, the melting temperature of the former glasses is approximately 100C lower,
which considerably facilitates the preparation of glasses of high optical quality.

Keywords: luminescence, near-infrared range, nanocrystal, gallium germanium silicate glasses

DOI: 10.1134/S1087659610060039

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